This pin belongs to a 6 pin set released by Loungefly called Oliver and Company Mystery. This pin is specifically for Rita. Rita is the brown Saluki dog from the movie Oliver and Company. She is sitting looking to the left. Set #141598, Georgette #150705, Oliver #150706, Einstein #150707, Tito #150708, Rita #150709, Dodger #150710.
Back of the pin has one post and two nubs. It has the Loungefly crown debossed and reads Disney, Disney trademark, and Made in China.